8539274661 has 8 divisors (see below), whose sum is σ = 11435419680. Its totient is φ = 5667989712.

The previous prime is 8539274651. The next prime is 8539274677. The reversal of 8539274661 is 1664729358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8539274661 - 2⁷ = 8539274533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8539274651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6214215 + ... + 6215588.

It is an arithmetic number, because the mean of its divisors is an integer number (1429427460).

Almost surely, 2^8539274661 is an apocalyptic number.

It is an amenable number.

8539274661 is a deficient number, since it is larger than the sum of its proper divisors (2896145019).

8539274661 is a wasteful number, since it uses less digits than its factorization.

8539274661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12430035.

The product of its digits is 2177280, while the sum is 51.

The square root of 8539274661 is about 92408.1958540475. The cubic root of 8539274661 is about 2043.9659696318.

The spelling of 8539274661 in words is "eight billion, five hundred thirty-nine million, two hundred seventy-four thousand, six hundred sixty-one".